| Type | Transistor Silicon NPN | |
| Case | SOT323 | |
| Manufacturer | NEC | |
| Polarity | NPN | |
| Maximum Collector Power Dissipation (Pc) | 0.1 W | |
| Maximum Collector-Base Voltage |Vcb| | 30 V | |
| Maximum Collector Current |Ic max| | 0.05 A | |
| Max. Operating Junction Temperature (Tj) | 150 °C | |
| Transition Frequency (ft): | 1600 MHz | |
| Forward Current Transfer Ratio (hFE), MIN | 200 | |
| SMD Transistor Code | U21_U22_U23 | |
| SKU | 557104 | |